Add BrightSurf on Google Email

Science News Archive March 2012 - Page 26


Page 26 of 32

Chimpanzees have policemen, too

In a study published in PLOS ONE, researchers observed chimpanzee groups and found that high-ranking individuals intervene in conflicts to ensure group stability. This behavior is driven by a community concern interest, with more parties to a conflict resulting in greater policing.

SourceUniversity of Zurich·JournalPLOS ONE·DateMar 7, 2012

Self-centered kids? Blame their immature brains

A new study suggests that egocentric behavior in children is linked to an immature prefrontal cortex, rather than a lack of understanding of fairness. Researchers found age-related increases in strategic decision-making between ages 6-13 years, with improved impulse control and brain activity in the left dorsolateral prefrontal cortex.

SourceCell Press·JournalNeuron·DateMar 7, 2012

Any UK law on cycle helmets should apply only to kids

Researchers argue that UK law on cycle helmets should apply only to kids due to equivocal evidence of adult protection. The authors suggest a paternalistic approach and instead recommend public health information to empower adults to make their own decisions about helmet-wearing.

SourceBMJ Group·JournalJournal of Medical Ethics·DateMar 7, 2012

New transplant method may allow kidney recipients to live life free of anti-rejection medication

A new study suggests that organ transplant recipients may no longer need anti-rejection medication thanks to the power of stem cells. Researchers are conducting a clinical trial using donor stem cell infusions to 'trick' the recipient's immune system, gradually eliminating or reducing the need for immunosuppressive drugs.

SourceNorthwestern Memorial HealthCare·JournalScience Translational Medicine·DateMar 7, 2012

Playful learning inside a square

The HOPSCOTCH learning system combines interactive gameplay with movement to make learning enjoyable for children of all ages. Initial tests at an elementary school showed enthusiasm from participants, particularly hyperactive kids, and Martina Lucht's vision is to integrate physical education with instruction in language skills.

Experimental drug reduces cortisol levels, improves symptoms in Cushing's disease

Pasireotide significantly reduced urinary cortisol levels and improved symptoms of Cushing's disease, cutting secretion by 50% and returning some patients' levels to normal. The drug, which blocks ACTH secretion by binding to somatostatin receptors on the pituitary tumor, showed promise in treating this rare endocrine disorder.

SourceMassachusetts General Hospital·JournalNew England Journal of Medicine·DateMar 7, 2012

How repeated stress impairs memory

Research reveals that repeated stress affects memory by reducing glutamate receptors in the prefrontal cortex, impairing high-level cognitive processes. The study provides critical insight into how chronic stress influences mental illnesses and offers potential targets for prevention and treatment.

SourceCell Press·JournalNeuron·DateMar 7, 2012

Fiercer competition for quicker innovations

A study by KIT's Institute for Technology Assessment and Systems Analysis reveals that fiercer technical competition in Japan drives innovative mobile services. European operators are recommended to adopt similar measures, such as unlicensed radio spectrum usage and new licensing schemes, to regain competitiveness.

SourceHelmholtz Association·JournalTelecommunications Policy·DateMar 7, 2012

Mechanism for Burgess Shale-type preservation

Researchers have discovered a global pattern in geochemical analysis that sheds light on the unusual preservation process of soft-bodied fossils found in the Burgess Shale. The team found that rapid burial in mud layers with low oxygen levels and the presence of calcium carbonate cement played a crucial role in conserving organic remains.

SourceUniversity of Southern Denmark·JournalProceedings of the National Academy of Sciences·DateMar 7, 2012

With extra gene, mice are footloose and cancer free

Researchers discovered that mice with an extra copy of the tumor suppressor Pten gene experience hyperactive brown fat, burning energy instead of storing it. This leads to improved metabolic balance, reduced insulin resistance, and lower liver fat, contributing to longer lifespan and cancer prevention.

SourceCell Press·JournalCell Metabolism·DateMar 6, 2012

Aggressive traumatic brain injury care improves outcomes, reduces long-term costs

A new study by University of Pennsylvania researchers finds that aggressive treatment for severe traumatic brain injuries significantly improves outcomes and reduces long-term costs. The study suggests that invasive interventions like ICP monitoring and decompressive craniotomies are cost-effective across all patient populations, inclu...

SourceUniversity of Pennsylvania School of Medicine·JournalJournal of Neurosurgery·DateMar 6, 2012